Abstract
This letter proposes a novel twin-coaxial resonator (TCR) for the first time, and its application to a balanced bandpass filter (BPF) with compact size and high common-mode suppression. The proposed TCR is composed of two coupled conductive posts within a single cavity, whose fundamental mode is used to construct the differential passband. To illustrate the proposed concept, a second-order balanced BPF is designed, fabricated and measured. The balanced filter owns an insertion loss of 0.45dB with a fractional bandwidth of 3.4% at 1.17GHz. And the common-mode suppression is more than 65 dB in the differential-mode passband. Good correspondence is observed between the measured results and the full-wave simulation results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
